Horsepower Differences Between Models

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Old Jul 12, 2019 | 10:21 PM
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Horsepower Differences Between Models

Are the HP and torque differences between the GT, GTS, GTC, and GTR simply derived from adjustments to the programming of the ECU? Or are there additional hardware bits needed to increase the power from one model to the next?
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Old Jul 12, 2019 | 10:44 PM
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GTR has forged pistons and higher compression where the GT and GTS do not.. I don't think this adds to the power and torque though, more of an over-engineering thing.

As for the power differences, I'd guess that's more with tuning.

Last edited by Southpaw07; Jul 12, 2019 at 11:04 PM.
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Old Jul 13, 2019 | 12:32 AM
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Originally Posted by P Rock
GTR has forged pistons and higher compression where the GT and GTS do not.. I don't think this adds to the power and torque though, more of an over-engineering thing.

As for the power differences, I'd guess that's more with tuning.
Forged in GT And GTS.

https://www.google.com/url?sa=t&sour...yKvNJ-eRmSQ0_T

Last edited by AMG 17GT; Jul 13, 2019 at 12:35 AM.
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Old Jul 13, 2019 | 01:06 AM
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I am doubting myself now but I think GTR and GTC have different turbos.
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Old Jul 13, 2019 | 01:08 PM
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Originally Posted by AMG 17GT
Interesting.. Pleasant surprise there. This article below however says:
"the GT R sports a twin-turbo V-8 based on the one in lesser AMG GTs, but with a revised intake, new forged aluminum pistons, and a higher compression ratio"

I'm hoping it's all the same but the phrase "new forged aluminum pistons" makes me wonder.

https://www.caranddriver.com/feature...ected-feature/
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Old Jul 13, 2019 | 02:06 PM
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GT/ GTS compression ratio 10.5/1
GTC/ GT R compression ratio 9;5/1
GTC and GT/R slightly larger turbo's move more air.
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Old Sep 4, 2019 | 02:28 PM
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Saw this. GT and GTS motors are the same. They should both make the same horsepower when tuned. I have confirmed this with multiple tuners if you have a 17-18 GT.
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Old Sep 4, 2019 | 08:30 PM
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The turbos on the GTR/GTC have twin scrolls, which make them better and give them more power. From everything I have seen though, when tuned, it's pretty much a drivers race between all models.
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Old Sep 4, 2019 | 10:21 PM
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Originally Posted by Jim Brady
GT/ GTS compression ratio 10.5/1
GTC/ GT R compression ratio 9;5/1
GTC and GT/R slightly larger turbo's move more air.
This...
Bigger turbos, lower compression...
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